Molding machine



Apr. 10, 1923.

J. D. DAUGHDRILLV MOLDING MACHINE Pi led Sept.

9, 1921 5 sheets-she'et 1 fippazlyizmzz,

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Apr; 10, 1923. 1,451,323 v J. D. DAUGHDRILL MOLDING MACHINE Filed Sept, 9, 1921 5 sheets-sheet 2 abtozmq Apr.10,1923. I 1,451,323

r J. D. DAUGHDRILL MOLDING MACHINE Filed se ic. 9, 1921 5 sheets-heet 5 00 dayi'z'igy mg v attorney,

Patented Apr. 10, 192 3.

srrEs JOHN D. DAUGHDRILL, OF ANNISTON', ALABAMA. I

MOLDING MAGHINE.

Application filed September 9, 1921. serialgNo. 499,455.

To (ZZZ w 72 0772 it may concern.

Be it known that 1, JOHN D. DAUGHDRILL, a citizen of the United States, residing at Anniston, in the county of Calhoun and State of Alabama, have invented a new and useful Molding Machine, of which the following is a specification.

This invention aims to provide a simple but efficient means whereby sand molds for casting operations may be formed, the construction being such that one mold may be placed readily on top of another, the casting operation taking place in a plurality of molds at once. g

It is within the province of the disclosure to improve generally and to enhance the utility of devices of that type to which the invention appertains.

,With the above and other objects in view, which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that, within the scope of what is claimed, changes in the precise embodiment of the invention shown can be made without departing from the spirit of the invention.

In the accompanying drawings I Figure 1 shows in front elevation,a device constructed in accordance with the invention; Figure 2 is a section onthe line 22 of Figure 1; Figure 3v is a section on the line 3-3 of Figure 1; and Figure 4 is a detailed view illustrating the lower pattern.

In carrying out the invention, there is provided a main frame 1 including a supporting structure 2 and a table 3 carried thereby, the table having any opening 4 and being provided with a depending SlGGVB 5 located about the opening.

The numeral 6 denotes an auxiliary frame, the side portions of which have guide slots 7. The auxiliary frame 6 is connected at itslower end by hinges 8, with the table 3, the construction being such that the auxiliary frame may be swung'backw ardly in the direction of the arrow A in Figure 2. When the auxiliary frame 6 stands upright, as depicted in Figure 2, it is sustained by in clined braces 9, the lower ends of which are secured to the table 3 although, if desired, the upper ends of the braces 9 may be secured to the uprights of the frame 6, the showing of the drawings being the same, in either instance.

A first shaft 10 is mounted to rock on the supporting'structure and is located below the table 3, the shaft having terminal cranks 11. The shaft'lO carries, intermediate its ends, an operating arm 12. The lower ends of pit-mans 14 are pivoted on the cranks 1]., f

rodsl'? are secured to the pattern 16, the

lower ends of the guide rods being mounted for reciprocation in the supporting structure .4. A recess 18 is formed in the lower pattern 16,9. compression spring 19 being disposed in the recess. A gate pin is slidably mounted at its lower end in the recess 18, in engagement with the spring 19 the pin being denoted by the numeral 20.

The numeral 21 marks a cross head having reduced ends received slidably in the guide slots 7 in the auxiliary frame 6. The

upper ends of pitmans 22 are mounted .piv-' otally on the ends of the cross head 21, the lower ends of the pitmans being mounted pivotally on cranks 23 carried by a shaft 24 mounted to rock on the supporting structure 2. The shaft 24 has an arm 25. A bracket 26 is mounted on the supporting structure 2 and carries a set screw 27 held in place by a lock nut 28. The set screw 27, is

located in the path of the arm 25 and forms i I an adjustable stop therefor. The lower end of a connecting rod 29 is pivoted to the arm 25, the upper endof the rod being pivoted to a lever 31 fulcrumed intermediate its ends on the upper portion of the auxiliary frame 6, the connecting rod passing through an opening 30 in the table 3.

Supports '32 are mounted in the cross head 21 and have threaded portions 33, receiving nuts 34: which engage the cross head. The supports slide at their upper ends in the upper portion of the auxiliary frame 6 and form guides. The lower ends of the supports 32 are attached by foot plates 35 to an upper pattern 36. i

A flask 37 rests on the table 3. about the opening 4- and has upper ears 38 .and lower ears 39, the lower ears 39 having openings adapted to receivepins 410 projecting upwardly from the table 3 and carried thereby. The upper ears 3 are supplied with pins 41 adapted to be received in openings in a hopper 42, the hopper being supported on the mold 37.

In practical operation, the lower pattern 16 is raised until it is within the sleeve 5, the lower pattern being raised by a train of elements comprising the brackets 15, the pitmans 14:, the cranks 11 and the shaft 10, the shaft being operated through the -instrumentality of the handle 12. The flask 37 is then placed on the table 3, the flask being engaged with the pins e0 on the table 3. The hopper 4:2 is placed on the flask 37 and is engaged withthe pins ll on the upper cars 38 of the flask. The gate pin is placed in the recess 18 The flask 37 and the hopper 42 are filled with sand, indicated at 43, the auxiliary frame 6 having been swung backwardly on its hinges 8, so that g the upper pattern 36 is out of the way, the

. the pitmans 22,'the cross head 21 and the supports 32 for the upper pattern 86. The sand thus is compressed in the flask 87, one part of the object which is to be cast being adapted to be formed in the upper'portion of the sand in the flask, and the other part of the object being adapted to be formed in the lower portion of the sand in the flask. The lower pattern 16 is lowered, the upper pattern 36 is raised, and the gate pin 20 is removed. The flask 37, with the sand there in, is placed on the casting floor, one flask being piled on another, the pins 41 of the flask engaging the cars 39 of the flask thereabove, the openings formed by the gate pins 20 being alined. Thereupon, the metal may be'poured into a plurality of flasks at once, one half of the object being formed in one flask, and the other half of the object being formed in the flask next therebelow.

The position of the upper pattern 36 with respect to the flask 37 may be adjusted by shifting the nuts 34 on the members 33.

The downward movement of the upper pattern 36 may be regulated by adjusting the set screw 27, it being recalled that the set screw coacts with the arm 25 which forms part of the mechanism for operating the pattern.

Vhat is claimed is:

1. In a device of the class described, a main frame; a flask carried thereby; alower pattern cooperating With'the flask; means carried by the main frame for raising and lowering the lower pattern; an upper pattern cooperating. with the flask; an auxiliary frame hinged to the main frame for folding movement with respect to the main frame, means for mounting the upper pattern on the auxiliary frame for movement toward and away from the lower pattern; and mechanism carried by the main and auxiliary frames for operating the upper pattern toward and away from the lower pattern.

2. In a device of the class described, a support; a flask thereon; a lower pattern cooperating with the flask; an upper pattern cooperating with the flask; a cross head slidable on the support; means for connecting the cross head to the upper pattern; a shaft mounted to rock on the support below the patterns and having a crank and an arm; a pitman forming a connection between the crank and the cross head; a lever fulcrumed on the support above the patterns; a connection between the lever and the arm; a second shaft mounted to rock on the support below the patterns and having a crank; a pitman connecting the last specified crank with the lower pattern; and means for operating the last specified shaft independently of the lever.

3. A device of the class described, constructed as set forth in claim 2 and further characterized by a stop member on the support and cooperating with the arm; and means for mounting the stop member for adjustment.

e. In a device of the class described, a main frame; a flask thereon; a lower pattern cooperating with the flask; an auxiliary frame mounted to swing on the main frame; a cross head slidable on the auxiliary frame; an upper pattern supported on the cross head and cooperating with the flask; a shaft journaled on the main frame below the patterns; means for connecting the shaft operatively with the cross head; a lever fulcrumed on the auxiliary frame; means for connecting the lever operatively with the shaft; asecond shaft journaled on the main frame below the patterns; means for connecting the second shaft operatively with the lower pattern; and means independent of the lever for actuating the second shaft.

In testimony that I claim the foregoing as my own, I have hereto aflixed my signature in the presence of two Witnesses.

JOHN D. DAUGHDRILL.

Witnesses:

ALBERT E. NOBLE, Cnras. J. TURNER. 

